• Dual oxygen delivery modes with Continuous Flow and Pulse Flow options for flexible oxygen therapy support • Oxygen flow rate of up to 5L/min to meet varying respiratory care needs • Lightweight and compact portable design at only 1.98kg for enhanced mobility and convenience • Easy-to-remove external battery system for quick and hassle-free battery replacement • Includes a sturdy and durable shoulder bag for comfortable portability and everyday travel use • Supplied with two rechargeable batteries providing up to 5.5 hours of usage each for extended operation and reliabilit